pub struct DictValue { /* private fields */ }Expand description
This struct stores the scalar value (or array) of one of the following type: double, cv::String or int64. @todo Maybe int64 is useless because double type exactly stores at least 2^52 integers.
Implementations§
Source§impl DictValue
impl DictValue
pub fn copy(r: &impl DictValueTraitConst) -> Result<DictValue>
pub fn from_bool(i: bool) -> Result<DictValue>
Sourcepub fn from_i64_def() -> Result<DictValue>
pub fn from_i64_def() -> Result<DictValue>
§Note
This alternative version of [from_i64] function uses the following default values for its arguments:
- i: 0
pub fn from_i32(i: i32) -> Result<DictValue>
pub fn from_u32(p: u32) -> Result<DictValue>
pub fn from_f64(p: f64) -> Result<DictValue>
pub fn from_str(s: &str) -> Result<DictValue>
Trait Implementations§
Source§impl Boxed for DictValue
impl Boxed for DictValue
Source§unsafe fn from_raw(ptr: <DictValue as OpenCVFromExtern>::ExternReceive) -> Self
unsafe fn from_raw(ptr: <DictValue as OpenCVFromExtern>::ExternReceive) -> Self
Wrap the specified raw pointer Read more
Source§fn into_raw(self) -> <DictValue as OpenCVTypeExternContainer>::ExternSendMut
fn into_raw(self) -> <DictValue as OpenCVTypeExternContainer>::ExternSendMut
Return the underlying raw pointer while consuming this wrapper. Read more
Source§fn as_raw(&self) -> <DictValue as OpenCVTypeExternContainer>::ExternSend
fn as_raw(&self) -> <DictValue as OpenCVTypeExternContainer>::ExternSend
Return the underlying raw pointer. Read more
Source§fn as_raw_mut(
&mut self,
) -> <DictValue as OpenCVTypeExternContainer>::ExternSendMut
fn as_raw_mut( &mut self, ) -> <DictValue as OpenCVTypeExternContainer>::ExternSendMut
Return the underlying mutable raw pointer Read more
Source§impl DictValueTrait for DictValue
impl DictValueTrait for DictValue
Source§impl DictValueTraitConst for DictValue
impl DictValueTraitConst for DictValue
impl Send for DictValue
Auto Trait Implementations§
impl Freeze for DictValue
impl RefUnwindSafe for DictValue
impl !Sync for DictValue
impl Unpin for DictValue
impl UnwindSafe for DictValue
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<Mat> ModifyInplace for Matwhere
Mat: Boxed,
impl<Mat> ModifyInplace for Matwhere
Mat: Boxed,
Source§unsafe fn modify_inplace<Res>(
&mut self,
f: impl FnOnce(&Mat, &mut Mat) -> Res,
) -> Res
unsafe fn modify_inplace<Res>( &mut self, f: impl FnOnce(&Mat, &mut Mat) -> Res, ) -> Res
Helper function to call OpenCV functions that allow in-place modification of a
Mat or another similar object. By passing
a mutable reference to the Mat to this function your closure will get called with the read reference and a write references
to the same Mat. This is unsafe in a general case as it leads to having non-exclusive mutable access to the internal data,
but it can be useful for some performance sensitive operations. One example of an OpenCV function that allows such in-place
modification is imgproc::threshold. Read more